Wire-cable cutter.



N. J. GRANDCHAMP & L. S. BARNARD.

WIRE GABLE CUTTER.

APPLICATION FILED MAY 6, 1909.

Patented July 19, 1910.

UNITED STATES PATENT OFFICE.

NAPOLEON J. GRANDCHAMIP AND LEWIS S. BARNARD, OF OLYMPIA, WASHINGTON.

WIRE-CABLE CUTTER.

To all whom it may concern: 7

Be it known that we, NAPOLEON J. GRAND- CHAMP and Lnwrs S. BARNARD,citizens of the United States, residing at Olympia, in the county ofThurston, State of Washington, have invented a new and useful Vire-Cable Cutter, of which the following is a specification.

The objects of the invention are, generally, the provision in amerchantable form of a device of the class described which shall beinexpensive to manufacture, facile in operation and devoid ofcomplicated parts; specifically, the provision of toggle levers of noveland improved construction, adapted to operate the device, and of a camlever and a guard strip, whereby the said toggle levers may be actuated;other and further obj ects being made manifest hereinafter as thedescription of the invention progresses.

The invention consists in the novel construction and arrangement ofparts hereinafter described, delineated in the accompanying drawings,and particularly pointed out in that portion of this instrument whereinpatentable novelty is claimed for certain distinctive and peculiarfeatures of the device, it being understood that within the scope ofwhat hereinafter is thus claimed, divers changes in the form,proportions, size and minor details of the structure may be made withoutdeparting from the spirit or sacrificing any of the advantages of theinvention.

Similar numerals of reference are employed to denote corresponding partsthroughout the several figures of the drawings.

In the accompanying drawings Figure 1 shows our invention inperspective, and Fig. 2 is a perspective detail, showing a slightmodification in the jaws of the device.

In carrying out the invention a base member 1 is provided, having at itsends, support-engaging feet denoted by the numeral 2. The base member 1,at one end, is provided with an upstanding shoulder 3, upon which isarranged to reciprocate a movable jaw 1. This movable jaw 4 is adaptedto reciprocate in a guide 5 which is rigidly assembled with the shoulder3 of the base member. One edge of the upper face of the shoulder 3 isprovided with an upstanding tongue 6 which is adapted to register in agroove 7 in one edge of the movable 4. The base member 1 is terminallyprovided Specification of Letters Patent.

Application filed. May 6, 1909.

Patented July 19, 1910.

Serial No. 494,279.

with a fixed jaw 10 moved laterally out of alinement with the movablejaw 4E, and these jaws 4 and 10 may be provided with shearing plates 8.It is obvious that, as shown in F ig. 2, the fixed jaw 10 may bedisposed in alinement with the movable jaw 4:, the said jaws beingprovided, in such instance, with punching elements 9, or the like, thedevice, in its application, being by no means limited to the cuttingfunction which is imposed upon the plates 8.

Toggle levers are provided, and in their preferred form are composed ofa pair of parallel, spaced links 11, the said links at one end beingpivotally connected with the movable jaw 4:. A similar pair of spaced,parallel links 12 are provided one end of the said links being pivotallyassembled with a shoulder 11 rising from the base member 1. The adjacentends of the several links 11 and 12 are arranged to overlap, and throughthe overlapped portions is passed a transverse pintle 15, upon which isournaled for rotation, between the ends of the links, a roller 16. Thepintle 15 is terminally inclosed by standards spaced apart and risingfrom the base member 1. Between these spaced standards, which aredenoted by the numeral 17, the pintle is adapted to reciprocate, beingthereby held against accidental displacement.

An operating lever 18 is provided, having at its lower extremity, a camhead 19. A pivot bolt 20 is passed transversely through the upperextremities of the standards 17 and through the cam head 19 of theoperating lever, whereby the said operating lever is fulcrumed betweenthe said standards17.

The cam head 19 is adapted to engage the roller 16, to move the togglelevers into alinement with each other, whereby the movable jaw 4 may beadvanced toward the fixed jaw 10. A guide strip 21 is provided, one endof which is rigidly assembled with the extremity of the cam head 19, theother extremity thereof being assembled with the body proper of theoperating lever 18. This guide strip 21 is curved to conform to thecontour of the cam head 19 and is disposed between the members of eachpair of links 11 and 12, which go to make up the toggle levers, therollers 16 being disposed between the said guide strip 21, and the camhead 19 of the operating lever. As hereinbefore pointed out, when theupper, or free end of the operating lever 18 is moved in one direction,the cam head 19, engaging the roller 16, will actuate the movable jaw 4,toward the fixed jaw 10. When, however, the free end of the operatinglever 18 is swung in an opposite direction, the guide strip 21, engagingthe'roller 16, will raise the adjacent,

through the medium of the roller 16, thus retractingthe movable jaw fromthe fixed jaw 10.

The device, although simple in construction and-comprising but fewparts, embodies a construction in which a movable jaw may be actuatedwith great power toward a fixed jaw, and it will be seen, that throughthe medium of the guide strip 21, the movable jaw may be readilyretracted from the fixed jaw, after the device has exercised itsshearing function.

Having thus described the invention, what is claimed is:

A device of the class described comprising a base provided with a fixedaw; a movable jaw slidably mounted upon the base and arranged tocooperate with the fixed jaw; a pair of standards rising from the base;a

pivotally connected ends of the toggle levers,

lever having a cam head pivotally supported by the standards; a guidestrip spaced in its intermediate portion from the head and terminallysecured thereto; a pair of spaced links pivotally connected at one endto the base and arranged to include between them, the intermediateportion of the guide strip upon one side of the standards; a second pairof spaced links pivotally connected at one end with the movable aw andarranged to include between them, the intermediate portion of the guidestrip upon the other side of the standards, a connection uniting theadjacent ends of the links; and a roller mounted upon the connection,the roller being engageable by the guide strip to retract the movablejaw, and being engageable by the cam head to advance the movable jaw.

In testimony that we claim the foregoing as our own, we have heretoaflixed our signatures in the presence of two witnesses.

NAPOLEON J. GRANDCHAMP. LEWVIS S. BARNARD.

lVitnesses R. F. STURDEVANT, NELLA MoFARLANn.

